US20150123383A1 - Front airbag device - Google Patents
Front airbag device Download PDFInfo
- Publication number
- US20150123383A1 US20150123383A1 US14/361,810 US201214361810A US2015123383A1 US 20150123383 A1 US20150123383 A1 US 20150123383A1 US 201214361810 A US201214361810 A US 201214361810A US 2015123383 A1 US2015123383 A1 US 2015123383A1
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- US
- United States
- Prior art keywords
- elastic body
- airbag device
- steering wheel
- airbag module
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
- B60R21/2035—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit
- B60R21/2037—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit the module or a major component thereof being yieldably mounted, e.g. for actuating the horn switch or for protecting the driver in a non-deployment situation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
Definitions
- the present invention relates to a front airbag device including a steering wheel of a vehicle and an airbag module attached to the center of the steering wheel.
- Airbags are mounted on almost every vehicle (automobile). Airbags come in various types depending on where they are installed and on their purposes. For example, a front airbag generally used for protecting a driver is installed near the center of a steering wheel. In this case, the front airbag is folded in a small size in a housing that accommodates the front airbag and is covered with a cover.
- Most front airbags having such a configuration are configured as airbag modules that are separated from a steering wheel.
- an airbag device disclosed in Patent Literature 1 identified below, is separated from a steering wheel.
- a rod-shaped spring steel called an attachment rod is attached to a rear surface of a case of the airbag device, and the spring steel is connected to a hook of the steering wheel, whereby the airbag device is attached to the steering wheel.
- the spring steel can be bent, and the use of these spring steel and hook enables the airbag device of Patent Literature 1 to be easily attached to and detached from the steering wheel.
- Patent Literature 1 Japanese Patent Application Publication No. 2007-145112
- the airbag device of Patent Literature 1 described above has a structure in which a detachment jig is inserted from a rear side of the steering wheel, and the detachment jig is operated to disconnect the spring steel from the hook, whereby the airbag device is detached from the steering wheel.
- the airbag device having such a detachable structure is convenient since maintenance of the airbag can be performed even after the vehicle is operated, it may be more preferable if the detachment can be realized with a simpler operation.
- an object of the present invention is to provide a front airbag device in which an airbag module can be detached from a steering wheel with a simpler operation.
- a front airbag device including a steering wheel of a vehicle and an airbag module that is attached to the center of the steering wheel, wherein the airbag module includes an airbag and a housing that stores the airbag, the steering wheel includes: a positioning hook that is hooked on the housing so as to restrict the position of the airbag module; and a retaining hook that extends toward the housing so as to prevent removal of the airbag module by being hooked on the housing when the airbag module moves in a direction of being removed from the steering wheel, the housing includes: a positioning tab on which the positioning hook is hooked and which is configured to be connected to or disconnected from the positioning hook by being bent and tilted; and an elastic body on which the retaining hook is hooked when the airbag module moves in the direction of being removed from the steering wheel, the positioning tab is provided near the elastic body, the positioning tab further includes an extension portion that extends the shape of the positioning tab, the steering wheel further includes a window portion that allows the extension portion to be
- the airbag module when the airbag module only is detached after respective members are assembled, the airbag module can be detached with a simple operation of inserting a general tool represented by a driver, for example, in the window portion of the steering wheel and pressing the extension portion with the tool to tilt the positioning tab.
- a general tool represented by a driver for example, in the window portion of the steering wheel and pressing the extension portion with the tool to tilt the positioning tab.
- the positioning tab may further include an extrusion portion that has a shape that protrudes toward the elastic body and that moves the elastic body. With this extrusion portion, since the elastic body can be moved more, the detaching operation of the airbag module becomes easier.
- the housing may have a gap formed on a side, toward which the positioning tab is tilted, so that the positioning tab is tilted.
- the positioning tab may be provided near an end portion of the elastic body.
- the elastic body can be realized by a rod-shaped spring or the like, for example, and it is easier to press and bend the elastic body when force is applied to the end portion.
- the positioning tab is provided near the end portion so that the elastic body can be pressed and bent with smaller force.
- the detaching operation of the airbag module becomes easier.
- An edge of the extrusion portion on the side of the elastic body may be inclined such that the edge protrudes further toward the elastic body as the protrusion of the edge gradually increases upward. According to this configuration, since the more the extension portion is bent, the larger the moving distance of the elastic body becomes when the elastic body is pressed by the extrusion portion, the detaching operation of the airbag module becomes easier.
- An edge of the extrusion portion on the side of the elastic body may draw an arc so as to protrude further toward the elastic body as the protrusion of the edge gradually increases upward.
- An edge of the extrusion portion on the side of the elastic body may draw an S-curve so as to protrude further toward the elastic body as the protrusion of the edge gradually increases upward.
- the edge makes point-contact with the elastic body and the elastic body can be moved more easily so as to follow the edge.
- the extension portion since the more the extension portion is bent, the larger the moving distance of the elastic body becomes when the elastic body is pressed by the extrusion portion, the detaching operation of the airbag module becomes easier.
- the extension portion may have a groove portion which is formed in an upper end surface of the extension portion and in which a predetermined tool can be inserted.
- the groove portion having this shape, since a screw driver can engage with the groove portion, the extension portion can be easily pressed toward the elastic body.
- the extension portion may have a hole portion which is formed in an upper end surface of the extension portion and in which a predetermined tool can be inserted.
- a predetermined tool For example, although the hole portion is just a rectangular hole, when the hole portion is formed in a certain size, a tool having a large width can be inserted therein. When the tool can be inserted therein, the extension portion can be easily pressed.
- the extension portion may have a surface on a side opposite to the tilting direction, which is inclined toward the tilting direction with respect to the extension direction of the extension portion.
- the retaining hook may extend in a direction where the airbag module is removed, and the housing may have a guide portion that allows the elastic body to move only in a direction orthogonal to the extension direction of the retaining hook.
- the steering wheel may further include a steering cover which is an external cover and is attached to an opposite side of the steering wheel to the airbag module, and the window portion may include an opening portion formed in the steering cover.
- the window portion may allow an opposite side of the extension portion to the tilting direction to be visible. With this configuration, pressing of the extension portion using the tool can be performed easily.
- FIGS. 1A and 1B are diagrams illustrating a front airbag device according to an embodiment of the present invention.
- FIGS. 2A and 2B are diagrams illustrating an outline of an airbag module illustrated in FIG. 1B .
- FIG. 3 is a perspective view illustrating the surrounding of a positioning tab illustrated in FIG. 2B .
- FIGS. 4A and 4B are diagrams illustrating the process of an operation of the positioning tab illustrated in FIG. 3 .
- FIG. 5 is a cross-sectional view along line B-B of FIG. 1A .
- FIGS. 6A and 6B are diagrams illustrating modifications of an extrusion portion illustrated in FIG. 4A .
- FIGS. 7A and 7B are diagrams illustrating modifications of an extension portion illustrated in FIG. 3 .
- FIGS. 8A and 8B are diagrams illustrating a modification of an extension portion illustrated in FIG. 3 .
- FIGS. 1A and 1B are diagrams illustrating a front airbag device 100 according to an embodiment of the present invention.
- FIG. 1A illustrates an entire structure of the front airbag device 100 .
- directions are indicated on the supposition that the front airbag device 100 is attached to a vehicle such that a direction of a steering column (shaft) (not illustrated) is Z-axis, and a direction from the 9 o'clock position to the 3 o'clock position is X-axis and a direction from the 6 o'clock position to the 12 o'clock position is Y-axis when the 12 o'clock position of a 12-hour analog clock is on the vehicle front side in a plane orthogonal to the Z-axis.
- a steering column shaft
- a direction from the 9 o'clock position to the 3 o'clock position is X-axis
- a direction from the 6 o'clock position to the 12 o'clock position is Y-axis when the 12 o'clock position of
- the front airbag device 100 illustrated in FIG. 1A is a device for protecting a driver and is configured to include a steering wheel 102 and an airbag module 104 attached near the center of the steering wheel 102 .
- the airbag module 104 also functions as a horn switch.
- a spring member (not illustrated) is provided between the airbag module 104 and the steering wheel 102 , for example, and the airbag module 104 is configured to be pressed toward the steering wheel 102 .
- FIG. 1B is an exploded view of the front airbag device 100 illustrated in FIG. 1A .
- a metallic core member (metal portion 106 ) is used for the steering wheel 102 illustrated in FIG. 1B , and a ring portion 108 or the like grasped by the driver is covered with a resin.
- the steering wheel 102 is covered with a resinous steering cover 110 which is attached to a rear surface side of the steering wheel 102 opposite to the airbag module 104 .
- Positioning hooks 111 a and 111 b are provided on the metal portion 106 of the steering wheel 102 .
- the positioning hooks 111 a and 111 b are portions which are hooked on a housing 116 (see FIG. 2B ) of the airbag module 104 . Due to this, although the airbag module 104 attached to the steering wheel 102 is configured to be movable slightly in the Z direction in order to function as a horn switch, the movement is restricted (positioned) to a predetermined range by the positioning hooks 111 a and 111 b.
- retaining hooks 112 a and 112 b are provided on the metal portion 106 .
- the retaining hooks 112 a and 112 b are portions provided mainly to prevent the airbag module 104 from falling off
- the retaining hooks 112 a and 112 b extend toward the airbag module 104 (in particular, the housing 116 illustrated in FIG. 2B ).
- the retaining hooks 112 a and 112 b are caught in the housing 116 to prevent the airbag module 104 from falling off when the airbag module 104 moves in a direction (identical to the Z-axis direction) of being removed from the steering wheel 102 during operation of an airbag 114 (see FIG. 2A ), for example.
- the front airbag device 100 illustrated in FIG. 1A is in a state where the airbag module 104 is connected to the steering wheel 102 having these constituent components described above and the steering cover 110 is further assembled with the steering wheel 102 .
- a method for detaching the airbag module 104 only from the front airbag device 100 in the state of FIG. 1A is taken into consideration.
- FIGS. 2A and 2B are diagrams illustrating an outline of the airbag module 104 illustrated in FIG. 1B .
- FIG. 2A is an exploded view of the airbag module 104 illustrated in FIG. 1B .
- the airbag module 104 includes the housing 116 that stores the airbag 114 in a folded state and a cover 118 that covers the housing 116 .
- These housing 116 and cover 118 are formed from a synthetic resin.
- FIG. 2B is a diagram illustrating a rear surface (the side close to the steering wheel 102 (see FIG. 1B )) of solely the housing 116 illustrated in FIG. 2A .
- a hole 117 is formed approximately at the center of the rear side of the housing 116 , and an inflator (not illustrated) which is a gas generator is attached to the hole. Since the airbag module 104 (see FIG. 1A ) also functions as a horn switch, terminals (not illustrated) and the like are also attached to the rear surface of the housing 116 .
- Two springs 120 a and 120 b serving as elastic bodies of the present embodiment are attached to the rear surface of the housing 116 .
- the springs 120 a and 120 b are portions at which the retaining hooks 112 a and 112 b are caught when the airbag module 104 described with reference to FIG. 1B moves in a direction of being removed from the steering wheel 102 .
- the springs 120 a and 120 b are metallic members formed in a rod shape and have elastic properties and thus can be bent. These springs 120 a and 120 b are not in contact with the retaining hooks 112 a and 112 b in a normal state.
- the rod-shaped spring is an example of an elastic body, and the present invention is not limited to this, and the elastic body may be configured as a planar spring or the like, for example.
- Positioning tabs 124 a and 124 b on which the positioning hooks 111 a and 111 b (see FIG. 1B ) of the steering wheel 102 are hooked are provided near end portions 122 a and 122 b of the springs 120 a and 120 b.
- the positioning tab 124 b will be described by way of an example (the positioning tabs 124 a and 124 b have the same configuration).
- the positioning tab 124 b is a portion extending in a planar shape, and an opening 125 b is formed at the center of the positioning tab 124 b so that the positioning hook 111 b is hooked on.
- the positioning tab 124 b Since the housing 116 is formed of a resin, the positioning tab 124 b also has flexible properties, and the base portion can be bent to be tilted. Since the positioning tab 124 b is configured to be tilted in this manner, the positioning tab 126 b can be connected to and disconnected from the positioning hook 111 b.
- the positioning tab 124 b illustrated in FIG. 2B is bent to be tilted so that the positioning tab 124 b is removed from the positioning hook 111 b (see FIG. 1B ), and the spring 120 b is pressed, bent, and moved by the positioning tab 124 b so that the spring 120 b and the retaining hook 112 b (see FIG. 1B ) do not come into contact with each other so that they are not caught at each other.
- the positioning tabs 124 a and 124 b have the same configuration, and the positioning tab 124 a will be described by way of an example.
- FIG. 3 is a perspective view illustrating the surrounding area of the positioning tab 124 a illustrated in FIG. 2B .
- An extension portion 126 is formed in the positioning tab 124 a so that the shape of the positioning tab 124 a is extended.
- the extension portion 126 is a portion that an operator presses with a tool 180 (see FIG. 5 ) when tilting the positioning tab 124 a so as to detach the airbag module 104 from the steering wheel 102 (see FIG. 1B ).
- an extrusion portion 128 is provided in a portion of the extension portion 126 which is located close to the spring 120 a and which makes contact with the spring 120 a when the positioning tab 124 a is tilted.
- the extrusion portion 128 has such a shape that protrudes toward the spring 120 a from the extension portion 126 .
- FIGS. 4A and 4B are diagrams illustrating the process of an operation of the positioning tab 124 a illustrated in FIG. 3 .
- FIG. 4A is a view along arrow A of the positioning tab 124 a illustrated in FIG. 3 .
- FIG. 4A illustrates the retaining hook 112 a by an imaginary line.
- the extrusion portion 128 has such an inclined shape that an edge 130 close to the spring 120 a protrudes further toward the spring 120 a as the protrusion of the edge 130 gradually increases upward.
- the more the positioning tab 124 a is tilted the larger the moving distance of the spring 120 a becomes when the spring 120 a is pressed by the extrusion portion 128 .
- the detaching operation of the airbag module 104 becomes simpler.
- the positioning tabs 124 a and 124 b are provided near the end portions 122 a and 122 b of the springs 120 a and 120 b.
- the springs 120 a and 120 b have a rod shape, and it is easier to press and bend the springs 120 a and 120 b when force is applied to the end portions 122 a and 122 b.
- the positioning tabs 124 a and 124 b are provided near the end portions 122 a and 122 b so that the springs 120 a and 120 b can be pressed and bent with smaller force.
- a gap E 1 is formed in a portion of the housing 116 in which the positioning tab 124 a is provided and which is located close to the spring 120 a.
- the gap is formed in this position so that the positioning tab 124 a is bent and tilted as illustrated in FIG. 4B .
- a guide portion 140 is formed in the housing 116 .
- the guide portion includes a beam portion 140 a disposed on the housing 116 and an edge portion 140 b disposed under (in the drawing) the beam portion 140 a.
- the guide portion 140 restricts the movement in the Z-axis direction (illustrated in FIG. 4B ) of the spring 120 a and allows the movement in the X-axis direction only.
- the retaining hook 112 a extends in the Z-axis direction which is a detachment direction of the airbag module 104
- the moving direction of the spring 120 a is restricted to the X-axis direction which is a direction orthogonal to the Z-axis direction in which the retaining hook 112 a extends. In this manner, the spring 120 a can be moved efficiently in only the direction of avoiding the retaining hook 112 a.
- FIG. 5 is a cross-sectional view along line B-B of FIG. 1A .
- window portions 132 a and 132 b are provided at positions of the steering wheel 102 with which the extension portion 126 overlaps.
- the window portions 132 a and 132 b are gaps (or openings) for allowing the extension portion 126 to be visible from the outside.
- the tool 180 is inserted into the window portion 132 a, and the extension portion 126 is pressed by the tool 180 so that the positioning tab 124 a is bent and tilted. In this way, as described with reference to FIG.
- the tool 180 used may be a general tool as long as it has a rod shape, and a driver or the like can be used, for example.
- opening portions 134 a and 134 b of the steering cover 110 are included in the window portions 132 a and 132 b.
- the steering cover 110 is the cladding of the steering wheel 102 . Since the window portions 132 a and 132 b also extend to the steering cover 110 , even after the front airbag device 100 is assembled with the vehicle, only the airbag module 104 can be detached from the front airbag device 100 without disassembling the entire front airbag device 100 .
- the window portion 132 a may be configured such that a side of the extension portion 126 opposite to the tilting direction of the positioning tab 124 a is visible. In this manner, the operator can easily press the extension portion 126 using the tool 180 (the same is true for the window portion 132 b ).
- the front airbag device 100 enables the airbag module 104 only to be detached easily with a simple operation even after respective members are assembled. Thus, the labor and time required for operations when performing the maintenance of the airbag 114 or the like can be reduced.
- FIGS. 6A and 6B are diagrams illustrating modifications of the extrusion portion 128 illustrated in FIG. 4A .
- An edge 202 of an extrusion portion 200 illustrated in FIG. 6A draws an arc so as to protrude further toward the spring 120 a as the protrusion of the edge 202 gradually increases upward unlike the edge 130 of the extrusion portion 128 illustrated in FIG. 4A .
- the edge 202 can be moved more smoothly so as to make point-contact with the spring 120 a.
- an edge 302 has a different shape from the other examples.
- the edge 302 of the extrusion portion 300 draws an S-curve so as to protrude further toward the spring 120 a as the protrusion of the edge 302 gradually increases upward.
- the edge 302 makes point-contact with the spring 120 a whereby the spring 120 a can be moved more smoothly along the edge 302 .
- the moving distance of the spring 120 a when pressed by the extrusion portion 300 increases, the detaching operation of the airbag module 104 described with reference to FIG. 5 becomes easier.
- FIGS. 7A and 7B are diagrams illustrating modifications of the extension portion 126 illustrated in FIG. 3 .
- an upper end surface 402 has a different shape from that of the extension portion 126 illustrated in FIG. 3 .
- the extension portion 400 has a tool insertion groove portion 404 formed in the upper end surface 402 .
- the groove portion 404 may be formed linearly along a direction D 4 orthogonal to the direction D 3 of the spring 120 a.
- a flathead screw driver engages with the groove portion 404 , and the positioning tab 124 a can be easily pushed into the groove portion 404 .
- a wall portion 406 of the groove portion 404 on a side opposite to the tilting direction of the positioning tab 124 a is formed to be low. If so, it is possible to prevent the wall portion 406 from being broken by being pressed by the tool.
- an upper end surface 502 has a different configuration from that of the other examples.
- a hole portion 504 is formed in the upper end surface 502 of the extension portion 500 .
- the hole portion is just a rectangular hole, since the hole portion is formed in a certain size, a tool having a large width can be inserted therein. By inserting a tool therein, the positioning tab 124 a can be easily pressed. It is preferable that a wall portion 506 of the hole portion 504 on a side opposite to the tilting direction of the positioning tab 124 a is formed to be low. If so, it is possible to prevent the wall portion 506 from being broken by being pressed by the tool.
- FIGS. 8A and 8B are also diagrams illustrating a modification of the extension portion 126 illustrated in FIG. 3 .
- An extension portion 600 illustrated in FIG. 8A is characterized in the angle of a back surface 602 .
- FIG. 8B is a diagram in which the portion near the window portion 132 a illustrated in FIG. 5 is depicted in a view taken along arrow C of FIG. 8A .
- the back surface 602 is a surface of the extension portion 126 on a side opposite to the tilting direction of the positioning tab 124 a.
- the back surface 602 is tilted in a direction (the left direction in the figure) that is tilted with respect to the extension direction (the upward direction in the figure) of the extension portion 126 .
- the positioning tab can be easily pressed when the tool 180 is inserted from the window portion 132 a. Moreover, even when the window portion 138 is present only immediately above the extension portion 126 , and a tool 182 , depicted by an imaginary line, is inserted from the window portion 138 , it is convenient because the positioning tab 124 a is bent toward the spring 120 a when the back surface 602 is pressed from the above. Thus, with such a configuration, the detaching operation of the airbag module can be performed easier.
Abstract
Description
- 1. Field of the Invention
- The present invention relates to a front airbag device including a steering wheel of a vehicle and an airbag module attached to the center of the steering wheel.
- 2. Related Technology
- At present, airbags are mounted on almost every vehicle (automobile). Airbags come in various types depending on where they are installed and on their purposes. For example, a front airbag generally used for protecting a driver is installed near the center of a steering wheel. In this case, the front airbag is folded in a small size in a housing that accommodates the front airbag and is covered with a cover.
- Most front airbags having such a configuration are configured as airbag modules that are separated from a steering wheel. For example, an airbag device disclosed in Patent Literature 1, identified below, is separated from a steering wheel. A rod-shaped spring steel called an attachment rod is attached to a rear surface of a case of the airbag device, and the spring steel is connected to a hook of the steering wheel, whereby the airbag device is attached to the steering wheel. The spring steel can be bent, and the use of these spring steel and hook enables the airbag device of Patent Literature 1 to be easily attached to and detached from the steering wheel.
- Patent Literature 1: Japanese Patent Application Publication No. 2007-145112
- The airbag device of Patent Literature 1 described above has a structure in which a detachment jig is inserted from a rear side of the steering wheel, and the detachment jig is operated to disconnect the spring steel from the hook, whereby the airbag device is detached from the steering wheel. Although the airbag device having such a detachable structure is convenient since maintenance of the airbag can be performed even after the vehicle is operated, it may be more preferable if the detachment can be realized with a simpler operation.
- With the foregoing in view, an object of the present invention is to provide a front airbag device in which an airbag module can be detached from a steering wheel with a simpler operation.
- In order to solve the problem, according to a representative aspect of the present invention, there is provided a front airbag device including a steering wheel of a vehicle and an airbag module that is attached to the center of the steering wheel, wherein the airbag module includes an airbag and a housing that stores the airbag, the steering wheel includes: a positioning hook that is hooked on the housing so as to restrict the position of the airbag module; and a retaining hook that extends toward the housing so as to prevent removal of the airbag module by being hooked on the housing when the airbag module moves in a direction of being removed from the steering wheel, the housing includes: a positioning tab on which the positioning hook is hooked and which is configured to be connected to or disconnected from the positioning hook by being bent and tilted; and an elastic body on which the retaining hook is hooked when the airbag module moves in the direction of being removed from the steering wheel, the positioning tab is provided near the elastic body, the positioning tab further includes an extension portion that extends the shape of the positioning tab, the steering wheel further includes a window portion that allows the extension portion to be visible from the outside, and the positioning tab is tilted to press, bend, and move the elastic body so as to prevent the elastic body from making contact with the retaining hook as well as being disconnected from the positioning hook.
- According to the configuration, when the airbag module only is detached after respective members are assembled, the airbag module can be detached with a simple operation of inserting a general tool represented by a driver, for example, in the window portion of the steering wheel and pressing the extension portion with the tool to tilt the positioning tab. Thus, the labor and time required for operations when performing the maintenance of the airbag or the like can be reduced.
- The positioning tab may further include an extrusion portion that has a shape that protrudes toward the elastic body and that moves the elastic body. With this extrusion portion, since the elastic body can be moved more, the detaching operation of the airbag module becomes easier.
- The housing may have a gap formed on a side, toward which the positioning tab is tilted, so that the positioning tab is tilted. With this configuration, the detaching operation of the airbag module becomes easier.
- The positioning tab may be provided near an end portion of the elastic body. The elastic body can be realized by a rod-shaped spring or the like, for example, and it is easier to press and bend the elastic body when force is applied to the end portion. Thus, the positioning tab is provided near the end portion so that the elastic body can be pressed and bent with smaller force. Thus, the detaching operation of the airbag module becomes easier.
- An edge of the extrusion portion on the side of the elastic body may be inclined such that the edge protrudes further toward the elastic body as the protrusion of the edge gradually increases upward. According to this configuration, since the more the extension portion is bent, the larger the moving distance of the elastic body becomes when the elastic body is pressed by the extrusion portion, the detaching operation of the airbag module becomes easier.
- An edge of the extrusion portion on the side of the elastic body may draw an arc so as to protrude further toward the elastic body as the protrusion of the edge gradually increases upward. With this configuration, when the elastic body is pressed and moved, the edge can be moved more easily so as to make point-contact with the elastic body. Moreover, with this configuration, since the more the extension portion is bent, the larger the moving distance of the elastic body becomes when the elastic body is pressed by the extrusion portion, the detaching operation of the airbag module becomes easier.
- An edge of the extrusion portion on the side of the elastic body may draw an S-curve so as to protrude further toward the elastic body as the protrusion of the edge gradually increases upward. With this configuration, the edge makes point-contact with the elastic body and the elastic body can be moved more easily so as to follow the edge. Moreover, with this configuration, since the more the extension portion is bent, the larger the moving distance of the elastic body becomes when the elastic body is pressed by the extrusion portion, the detaching operation of the airbag module becomes easier.
- The extension portion may have a groove portion which is formed in an upper end surface of the extension portion and in which a predetermined tool can be inserted. With the groove portion having this shape, since a screw driver can engage with the groove portion, the extension portion can be easily pressed toward the elastic body.
- The extension portion may have a hole portion which is formed in an upper end surface of the extension portion and in which a predetermined tool can be inserted. For example, although the hole portion is just a rectangular hole, when the hole portion is formed in a certain size, a tool having a large width can be inserted therein. When the tool can be inserted therein, the extension portion can be easily pressed.
- The extension portion may have a surface on a side opposite to the tilting direction, which is inclined toward the tilting direction with respect to the extension direction of the extension portion. With this configuration, when a tool is inserted from the window portion, the extension portion can be easily pressed by the tool. Thus, with this configuration, the detaching operation of the airbag module becomes easier.
- The retaining hook may extend in a direction where the airbag module is removed, and the housing may have a guide portion that allows the elastic body to move only in a direction orthogonal to the extension direction of the retaining hook. With this configuration, the elastic body can be moved efficiently in only the direction of avoiding the retaining hook. Thus, the detaching operation of the airbag module becomes easier.
- The steering wheel may further include a steering cover which is an external cover and is attached to an opposite side of the steering wheel to the airbag module, and the window portion may include an opening portion formed in the steering cover. With this configuration, only the airbag module can be easily detached even after the entire device is assembled into the vehicle.
- The window portion may allow an opposite side of the extension portion to the tilting direction to be visible. With this configuration, pressing of the extension portion using the tool can be performed easily.
- According to the present invention, it is possible to provide a front airbag device in which an airbag module can be detached from a steering wheel with a simpler operation.
-
FIGS. 1A and 1B are diagrams illustrating a front airbag device according to an embodiment of the present invention. -
FIGS. 2A and 2B are diagrams illustrating an outline of an airbag module illustrated inFIG. 1B . -
FIG. 3 is a perspective view illustrating the surrounding of a positioning tab illustrated inFIG. 2B . -
FIGS. 4A and 4B are diagrams illustrating the process of an operation of the positioning tab illustrated inFIG. 3 . -
FIG. 5 is a cross-sectional view along line B-B ofFIG. 1A . -
FIGS. 6A and 6B are diagrams illustrating modifications of an extrusion portion illustrated inFIG. 4A . -
FIGS. 7A and 7B are diagrams illustrating modifications of an extension portion illustrated inFIG. 3 . -
FIGS. 8A and 8B are diagrams illustrating a modification of an extension portion illustrated inFIG. 3 . - E1: Gap
- D3: Direction of spring
- D4: Direction orthogonal to direction of spring
- 100: Front airbag device
- 102: Steering wheel
- 104: Airbag module
- 106: Metal portion
- 108: Ring portion
- 110: Steering cover
- 112 a, 112 b: Retaining hook
- 114: Airbag
- 116: Housing
- 117: Hole
- 118: Cover
- 120 a, 120 b: Spring
- 122 a, 122 b: End portion
- 124 a, 124 b: Positioning tab
- 126, 126 b, 400, 500, 600: Extension portion
- 128, 200, 300: Extrusion portion
- 130, 202, 302: Edge of extrusion portion
- 132 a, 132 b: Opening portion
- 180: Tool
- 402, 502: Upper end surface
- 404: Groove portion
- 504: Hole portion
- Preferred embodiments of the present invention will be explained next in detail with reference to accompanying drawings. Dimensions, materials, other specific numerical values and the like given in the embodiments are only illustrative in character, for the sake of easier understanding of the invention, and, unless particularly stated otherwise, are not meant to limit the present invention in any way. In the description and the drawings, elements having substantially the same function and configuration are denoted by identical reference numerals, and a recurrent explanation thereof will be omitted. Elements that are not directly related to the present invention are omitted in the drawings.
-
FIGS. 1A and 1B are diagrams illustrating afront airbag device 100 according to an embodiment of the present invention.FIG. 1A illustrates an entire structure of thefront airbag device 100. In the following drawings includingFIG. 1A , directions are indicated on the supposition that thefront airbag device 100 is attached to a vehicle such that a direction of a steering column (shaft) (not illustrated) is Z-axis, and a direction from the 9 o'clock position to the 3 o'clock position is X-axis and a direction from the 6 o'clock position to the 12 o'clock position is Y-axis when the 12 o'clock position of a 12-hour analog clock is on the vehicle front side in a plane orthogonal to the Z-axis. - The
front airbag device 100 illustrated inFIG. 1A is a device for protecting a driver and is configured to include asteering wheel 102 and anairbag module 104 attached near the center of thesteering wheel 102. - The
airbag module 104 also functions as a horn switch. Thus, a spring member (not illustrated) is provided between theairbag module 104 and thesteering wheel 102, for example, and theairbag module 104 is configured to be pressed toward thesteering wheel 102. -
FIG. 1B is an exploded view of thefront airbag device 100 illustrated inFIG. 1A . A metallic core member (metal portion 106) is used for thesteering wheel 102 illustrated inFIG. 1B , and aring portion 108 or the like grasped by the driver is covered with a resin. Moreover, thesteering wheel 102 is covered with aresinous steering cover 110 which is attached to a rear surface side of thesteering wheel 102 opposite to theairbag module 104. - Positioning hooks 111 a and 111 b are provided on the
metal portion 106 of thesteering wheel 102. The positioning hooks 111 a and 111 b are portions which are hooked on a housing 116 (seeFIG. 2B ) of theairbag module 104. Due to this, although theairbag module 104 attached to thesteering wheel 102 is configured to be movable slightly in the Z direction in order to function as a horn switch, the movement is restricted (positioned) to a predetermined range by the positioning hooks 111 a and 111 b. - Moreover, retaining
hooks metal portion 106. The retaining hooks 112 a and 112 b are portions provided mainly to prevent theairbag module 104 from falling off The retaining hooks 112 a and 112 b extend toward the airbag module 104 (in particular, thehousing 116 illustrated inFIG. 2B ). The retaining hooks 112 a and 112 b are caught in thehousing 116 to prevent theairbag module 104 from falling off when theairbag module 104 moves in a direction (identical to the Z-axis direction) of being removed from thesteering wheel 102 during operation of an airbag 114 (seeFIG. 2A ), for example. - The
front airbag device 100 illustrated inFIG. 1A is in a state where theairbag module 104 is connected to thesteering wheel 102 having these constituent components described above and thesteering cover 110 is further assembled with thesteering wheel 102. In the present embodiment, a method for detaching theairbag module 104 only from thefront airbag device 100 in the state ofFIG. 1A is taken into consideration. -
FIGS. 2A and 2B are diagrams illustrating an outline of theairbag module 104 illustrated inFIG. 1B .FIG. 2A is an exploded view of theairbag module 104 illustrated inFIG. 1B . As illustrated inFIG. 2A , theairbag module 104 includes thehousing 116 that stores theairbag 114 in a folded state and acover 118 that covers thehousing 116. Thesehousing 116 and cover 118 are formed from a synthetic resin. -
FIG. 2B is a diagram illustrating a rear surface (the side close to the steering wheel 102 (seeFIG. 1B )) of solely thehousing 116 illustrated inFIG. 2A . Ahole 117 is formed approximately at the center of the rear side of thehousing 116, and an inflator (not illustrated) which is a gas generator is attached to the hole. Since the airbag module 104 (seeFIG. 1A ) also functions as a horn switch, terminals (not illustrated) and the like are also attached to the rear surface of thehousing 116. - Two
springs housing 116. Thesprings airbag module 104 described with reference toFIG. 1B moves in a direction of being removed from thesteering wheel 102. Thesprings springs - Positioning
tabs FIG. 1B ) of thesteering wheel 102 are hooked are provided nearend portions springs positioning tab 124 b will be described by way of an example (thepositioning tabs positioning tab 124 b is a portion extending in a planar shape, and anopening 125 b is formed at the center of thepositioning tab 124 b so that the positioning hook 111 b is hooked on. Since thehousing 116 is formed of a resin, thepositioning tab 124 b also has flexible properties, and the base portion can be bent to be tilted. Since thepositioning tab 124 b is configured to be tilted in this manner, thepositioning tab 126 b can be connected to and disconnected from the positioning hook 111 b. - In the present embodiment, when the
airbag module 104 illustrated inFIG. 1A is detached from thesteering wheel 102, thepositioning tab 124 b illustrated inFIG. 2B is bent to be tilted so that thepositioning tab 124 b is removed from the positioning hook 111 b (seeFIG. 1B ), and thespring 120 b is pressed, bent, and moved by thepositioning tab 124 b so that thespring 120 b and the retaininghook 112 b (seeFIG. 1B ) do not come into contact with each other so that they are not caught at each other. This will be described in detail below. Thepositioning tabs positioning tab 124 a will be described by way of an example. -
FIG. 3 is a perspective view illustrating the surrounding area of thepositioning tab 124 a illustrated inFIG. 2B . Anextension portion 126 is formed in thepositioning tab 124 a so that the shape of thepositioning tab 124 a is extended. Theextension portion 126 is a portion that an operator presses with a tool 180 (seeFIG. 5 ) when tilting thepositioning tab 124 a so as to detach theairbag module 104 from the steering wheel 102 (seeFIG. 1B ). - Moreover, in the present embodiment, an
extrusion portion 128 is provided in a portion of theextension portion 126 which is located close to thespring 120 a and which makes contact with thespring 120 a when thepositioning tab 124 a is tilted. Theextrusion portion 128 has such a shape that protrudes toward thespring 120 a from theextension portion 126. -
FIGS. 4A and 4B are diagrams illustrating the process of an operation of thepositioning tab 124 a illustrated inFIG. 3 .FIG. 4A is a view along arrow A of thepositioning tab 124 a illustrated inFIG. 3 .FIG. 4A illustrates the retaininghook 112 a by an imaginary line. When theextension portion 126 is pressed from the state ofFIG. 4A so that thepositioning tab 124 a is bent toward thespring 120 a, thepositioning tab 124 a is removed from thepositioning hook 111 a and theextrusion portion 128 presses and bends thespring 120 a to move thespring 120 a as illustrated inFIG. 4B , whereby a state, in which the contact between thespring 120 a and the retaininghook 112 a is obviated, is created. In this way, theairbag module 104 illustrated inFIG. 1A can be detached from thesteering wheel 102. - In the present embodiment, as illustrated in
FIG. 4A , theextrusion portion 128 has such an inclined shape that anedge 130 close to thespring 120 a protrudes further toward thespring 120 a as the protrusion of theedge 130 gradually increases upward. With this shape, the more thepositioning tab 124 a is tilted, the larger the moving distance of thespring 120 a becomes when thespring 120 a is pressed by theextrusion portion 128. Thus, the detaching operation of theairbag module 104 becomes simpler. - As illustrated in
FIG. 2B , thepositioning tabs end portions springs springs springs end portions positioning tabs end portions springs - Reference is made again to
FIG. 3 . As illustrated inFIG. 3 , a gap E1 is formed in a portion of thehousing 116 in which thepositioning tab 124 a is provided and which is located close to thespring 120 a. The gap is formed in this position so that thepositioning tab 124 a is bent and tilted as illustrated inFIG. 4B . - Moreover, a
guide portion 140 is formed in thehousing 116. The guide portion includes abeam portion 140 a disposed on thehousing 116 and anedge portion 140 b disposed under (in the drawing) thebeam portion 140 a. Theguide portion 140 restricts the movement in the Z-axis direction (illustrated inFIG. 4B ) of thespring 120 a and allows the movement in the X-axis direction only. Here, the retaininghook 112 a extends in the Z-axis direction which is a detachment direction of theairbag module 104, and the moving direction of thespring 120 a is restricted to the X-axis direction which is a direction orthogonal to the Z-axis direction in which theretaining hook 112 a extends. In this manner, thespring 120 a can be moved efficiently in only the direction of avoiding the retaininghook 112 a. -
FIG. 5 is a cross-sectional view along line B-B ofFIG. 1A . As illustrated inFIG. 5 ,window portions steering wheel 102 with which theextension portion 126 overlaps. Thewindow portions extension portion 126 to be visible from the outside. In the present embodiment, first, thetool 180 is inserted into thewindow portion 132 a, and theextension portion 126 is pressed by thetool 180 so that thepositioning tab 124 a is bent and tilted. In this way, as described with reference toFIG. 4B , since thepositioning tab 124 a is removed from thepositioning hook 111 a and thespring 120 a is moved in the X-axis direction so as not to make contact with the retaininghook 112 a, theairbag module 104 can be detached from thesteering wheel 102. Thetool 180 used may be a general tool as long as it has a rod shape, and a driver or the like can be used, for example. - In the present embodiment, opening
portions steering cover 110 are included in thewindow portions steering cover 110 is the cladding of thesteering wheel 102. Since thewindow portions steering cover 110, even after thefront airbag device 100 is assembled with the vehicle, only theairbag module 104 can be detached from thefront airbag device 100 without disassembling the entirefront airbag device 100. Thewindow portion 132 a may be configured such that a side of theextension portion 126 opposite to the tilting direction of thepositioning tab 124 a is visible. In this manner, the operator can easily press theextension portion 126 using the tool 180 (the same is true for thewindow portion 132 b). - As described above, the
front airbag device 100 enables theairbag module 104 only to be detached easily with a simple operation even after respective members are assembled. Thus, the labor and time required for operations when performing the maintenance of theairbag 114 or the like can be reduced. -
FIGS. 6A and 6B are diagrams illustrating modifications of theextrusion portion 128 illustrated inFIG. 4A . Anedge 202 of anextrusion portion 200 illustrated inFIG. 6A draws an arc so as to protrude further toward thespring 120 a as the protrusion of theedge 202 gradually increases upward unlike theedge 130 of theextrusion portion 128 illustrated inFIG. 4A . With this configuration, when thespring 120 a is pressed and moved, theedge 202 can be moved more smoothly so as to make point-contact with thespring 120 a. Moreover, with this configuration, since the more theextension portion 126 is bent, the larger the moving distance of thespring 120 a becomes when thespring 120 a is pressed by theextrusion portion 200, the detaching operation of theairbag module 104 described with reference toFIG. 5 becomes easier. - In an
extrusion portion 300 illustrated inFIG. 6B , anedge 302 has a different shape from the other examples. Theedge 302 of theextrusion portion 300 draws an S-curve so as to protrude further toward thespring 120 a as the protrusion of theedge 302 gradually increases upward. With this configuration, theedge 302 makes point-contact with thespring 120 a whereby thespring 120 a can be moved more smoothly along theedge 302. Moreover, since the moving distance of thespring 120 a when pressed by theextrusion portion 300 increases, the detaching operation of theairbag module 104 described with reference toFIG. 5 becomes easier. -
FIGS. 7A and 7B are diagrams illustrating modifications of theextension portion 126 illustrated inFIG. 3 . In anextension portion 400 illustrated inFIG. 7A , anupper end surface 402 has a different shape from that of theextension portion 126 illustrated inFIG. 3 . Theextension portion 400 has a toolinsertion groove portion 404 formed in theupper end surface 402. For example, thegroove portion 404 may be formed linearly along a direction D4 orthogonal to the direction D3 of thespring 120 a. For example, a flathead screw driver engages with thegroove portion 404, and thepositioning tab 124 a can be easily pushed into thegroove portion 404. In this case, it is preferable that awall portion 406 of thegroove portion 404 on a side opposite to the tilting direction of thepositioning tab 124 a is formed to be low. If so, it is possible to prevent thewall portion 406 from being broken by being pressed by the tool. - In an
extension portion 500 illustrated inFIG. 7B , an upper end surface 502 has a different configuration from that of the other examples. Ahole portion 504 is formed in the upper end surface 502 of theextension portion 500. Although the hole portion is just a rectangular hole, since the hole portion is formed in a certain size, a tool having a large width can be inserted therein. By inserting a tool therein, thepositioning tab 124 a can be easily pressed. It is preferable that awall portion 506 of thehole portion 504 on a side opposite to the tilting direction of thepositioning tab 124 a is formed to be low. If so, it is possible to prevent thewall portion 506 from being broken by being pressed by the tool. -
FIGS. 8A and 8B are also diagrams illustrating a modification of theextension portion 126 illustrated inFIG. 3 . Anextension portion 600 illustrated inFIG. 8A is characterized in the angle of aback surface 602.FIG. 8B is a diagram in which the portion near thewindow portion 132 a illustrated inFIG. 5 is depicted in a view taken along arrow C ofFIG. 8A . Theback surface 602 is a surface of theextension portion 126 on a side opposite to the tilting direction of thepositioning tab 124 a. Theback surface 602 is tilted in a direction (the left direction in the figure) that is tilted with respect to the extension direction (the upward direction in the figure) of theextension portion 126. With thisback surface 602, the positioning tab can be easily pressed when thetool 180 is inserted from thewindow portion 132 a. Moreover, even when thewindow portion 138 is present only immediately above theextension portion 126, and atool 182, depicted by an imaginary line, is inserted from thewindow portion 138, it is convenient because thepositioning tab 124 a is bent toward thespring 120 a when theback surface 602 is pressed from the above. Thus, with such a configuration, the detaching operation of the airbag module can be performed easier. - Preferred embodiments of the present invention have been described above with reference to accompanying drawings, but the described embodiments are exemplary, and the invention may be embodied and implemented in other ways, in accordance with various methods. Unless specifically indicated in the description of the present application, the invention is not restricted by the shape, size, configurational arrangement and so forth of the detailed parts depicted in the drawings. Furthermore, the expressions and terms used in the description of the present application are explanatory in purpose, and are not meant to be limiting in any way, unless restricting subject matter to that effect is specifically set forth in the description.
- Therefore, a person skilled in the art can devise various alterations or modifications within the scope as set forth in the claims, and it is to be understood that these alterations and modifications belong, as a matter of course, to the technical scope of the present invention.
Claims (13)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2011263142 | 2011-11-30 | ||
JP2011-263142 | 2011-11-30 | ||
PCT/JP2012/076097 WO2013080671A1 (en) | 2011-11-30 | 2012-10-09 | Front airbag device |
Publications (2)
Publication Number | Publication Date |
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US20150123383A1 true US20150123383A1 (en) | 2015-05-07 |
US9027960B1 US9027960B1 (en) | 2015-05-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/361,810 Active US9027960B1 (en) | 2011-11-30 | 2012-10-09 | Front airbag device |
Country Status (6)
Country | Link |
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US (1) | US9027960B1 (en) |
JP (1) | JP5714125B2 (en) |
KR (1) | KR101606122B1 (en) |
CN (1) | CN103958285B (en) |
IN (1) | IN2014CN03031A (en) |
WO (1) | WO2013080671A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD742797S1 (en) * | 2013-08-09 | 2015-11-10 | Fuji Jukogyo Kabushiki Kaisha | Operation part cover of pre-crash safety system for automobile |
US10532715B2 (en) * | 2015-04-24 | 2020-01-14 | Autoliv Development Ab | Steering wheel unit, airbag module, and steering wheel body |
US11208069B2 (en) * | 2019-06-26 | 2021-12-28 | Hyundai Mobis Co., Ltd. | Cover device for airbag |
CN114641413A (en) * | 2019-12-10 | 2022-06-17 | 奥托立夫Asp公司 | Driver airbag module coupling assembly |
Families Citing this family (8)
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JP5873408B2 (en) * | 2012-09-12 | 2016-03-01 | タカタ株式会社 | Airbag module mounting structure |
JP6185798B2 (en) * | 2013-05-07 | 2017-08-23 | 日本プラスト株式会社 | Steering wheel |
JP6136683B2 (en) * | 2013-07-16 | 2017-05-31 | タカタ株式会社 | Steering wheel with airbag device for driver's seat |
JP6320729B2 (en) * | 2013-11-25 | 2018-05-09 | オートリブ ディベロップメント エービー | Front airbag device |
KR102146661B1 (en) * | 2013-11-29 | 2020-08-21 | 현대모비스 주식회사 | An airbag module of vehicle |
KR102429161B1 (en) * | 2016-11-14 | 2022-08-03 | 현대자동차주식회사 | Driver airbag module for vehicle |
CN108437925A (en) * | 2018-03-05 | 2018-08-24 | 瑞安市正普汽车部件有限公司 | A kind of air bag balance spring |
FR3083189B1 (en) * | 2018-06-29 | 2021-12-10 | Autoliv Dev | REMOVABLE MOUNTING DEVICE FOR AN INFLATABLE CUSHION MODULE |
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- 2012-10-09 JP JP2013547030A patent/JP5714125B2/en active Active
- 2012-10-09 CN CN201280057992.0A patent/CN103958285B/en active Active
- 2012-10-09 US US14/361,810 patent/US9027960B1/en active Active
- 2012-10-09 WO PCT/JP2012/076097 patent/WO2013080671A1/en active Application Filing
- 2012-10-09 KR KR1020147012793A patent/KR101606122B1/en active IP Right Grant
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US20040046367A1 (en) * | 2002-09-09 | 2004-03-11 | Trw Automotive Safety Systems Gmbh | Airbag module and assembly of steering wheel and airbag module |
US20050017484A1 (en) * | 2003-07-21 | 2005-01-27 | Worrell Barry C. | Isolated ground for horn mechanism |
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US10532715B2 (en) * | 2015-04-24 | 2020-01-14 | Autoliv Development Ab | Steering wheel unit, airbag module, and steering wheel body |
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CN114641413A (en) * | 2019-12-10 | 2022-06-17 | 奥托立夫Asp公司 | Driver airbag module coupling assembly |
Also Published As
Publication number | Publication date |
---|---|
JPWO2013080671A1 (en) | 2015-04-27 |
CN103958285B (en) | 2016-02-24 |
WO2013080671A1 (en) | 2013-06-06 |
US9027960B1 (en) | 2015-05-12 |
JP5714125B2 (en) | 2015-05-07 |
KR20140082802A (en) | 2014-07-02 |
KR101606122B1 (en) | 2016-03-24 |
CN103958285A (en) | 2014-07-30 |
IN2014CN03031A (en) | 2015-07-03 |
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